I don't think I know of another common brewing yeast that is so polarizing and I really think it's because of how quickly Notty goes from a fairly clean, malt accentuating yeast to an ester bomb as you go from 55 to 70 (which is the manufacturer listed range). I can't stand it above about 63 but I absolutely love it at about 58.
If you ferment it low it runs through sugars, flocs like a rock, and can really make a malt bill shine. Ferment it warmer and it tosses esters that seem to wreck brews left and right. If someone was to ask me if they should try Notty I'd probably ask the following two questions:
* Do you have the ability to ferment at or below 60 F?
* If no, do you love or appreciate crazy amounts of esters?
If they answered no to both those questions, I think they'd be better just taking a pass on Notty for the time being.